4 -----------------------------
8 - sanitize use of md5 throughout distribution.. Make a static
9 library for helping to develop modules that contains it and other
10 stuff. Also add sha-1 and ripemd-160 digest algorithms.
11 - once above is done. remove hacks from the secret@here module etc..
12 - remove prototype for gethostname in pam_access.c (Derrick)
13 - document PAM_INCOMPLETE changes
14 - verify that the PAM_INCOMPLETE interface is sensible. Can we
15 catch errors? should we permit item changing etc., between
16 pam_authenticate re-invocations?
17 - verify that the PAM_INCOMPLETE interface works (auth seems ok..)
18 - add PAM_INCOMPLETE support to modules (partially added to pam_pwdb)
20 - do we still need to remove openlog/closelog from modules..?
21 - auth and acct support in pam_cracklib, "yes, I know the password
22 you just typed was valid, I just don't think it was very strong..."
23 - add in the pam_cap and pam_netid modules
25 ====================================================================
26 Note, as of release 0.73, all checkins should be accompanied with a
27 Bug ID. The bug IDs relate to sourceforge IDs.. You can query the
28 related bug description with the following URL:
30 http://sourceforge.net/bugs/?func=detailbug&bug_id=XXXXX&group_id=6663
32 Where you should replace XXXXX with a bug-id.
33 ====================================================================
35 0.74: please submit patches for this section with actual code/doc
38 * use O_NOFOLLOW if available when opening debug log (Bug 124385 - baggins)
39 * pam_cracklib - removed comments about pam_unix not working with
40 pam_cracklib, added information about use_authtok parameter
41 (Bug 124388 - baggins)
42 * pam_userdb - fixed wrong definition of struct pam_module (was pam_wheel)
43 (Bug 124386 - baggins)
44 * fixed example/Makefile include path (Bug 124187 - agmorgan)
45 * pam_userdb compiles on RH5x. Also removed circular dependency on
46 configure.in. Also bumped revision number to 0.74. (Bug 124136 -
49 0.73: Sat Dec 2 00:04:04 PST 2000
51 * updated documentaion revisions and added 'make release' support
52 to the top level Makefile (Bug 124132 - agmorgan).
53 * documented Qmail support in pam_mail (Bug 109219 - baggins)
54 * add change_uid option to pam_limits, and set real uid only if
55 this option is present (Bug 124062 - baggins)
56 * pam_limits - set real uid to the user for who we set limits.
57 (Bug 123972 - baggins)
58 * removed static variables from pam_limits (thread safe now). (Bug
60 * removed static variable from pam_wheel (module should be thread safe
61 now). (Bug 112906 - agmorgan)
62 * added support for '/' symbols in pam_time and pam_group config files
63 (support for modern terminal devices). Fixed infinite loop problem
64 with '\\[^\n]' in these files. (Bug 116076 - agmorgan)
65 * avoid potential SIGPIPE when writing to helper binaries with (Bug
67 * replaced bogus logic in the pam_cracklib module for determining if
68 the replacement is too similar to the old password (Bug 115055 -
70 * added accessconf=<filename> feature to pam_access - request from
71 Aldrin Martoq and Meelis Roos (Bugs 111927,117240 - agmorgan)
72 * fix for pam_limit module not dealing with all limits Adam J. Richter
73 (Bug 119554 - agmorgan)
74 * comment fix describing fail_delay callback in _pam_types.h (Bug
76 * "likeauth" fix for pam_unix and pam_pwdb which (Bug 113596 - agmorgan)
77 * fix for pam_unix (support.c) to avoid segfault with NULL password
79 * fix to pam_unix_passwd: try repeatedly to get a lock on the password
80 file, instead of failing immediately (Bug 108845 - fix vorlon)
81 * fix to pam_shells: logged information was not formatted correctly
82 (extra comma) (Bug 111491 - fix vorlon)
83 * fix for C++ application support (Bug 111645 - fix agmorgan)
84 * fix for typo in pam_client.h (Bug 111648 - fix agmorgan)
85 * removal of -lpam from pam_mkhomedir Makefile (Bug 116380 - fix agmorgan)
86 * autoconf support [Task ID 15788, Bug ID 108297 - agmorgan with help!]
87 - bugfix for libpamc.h include file [Bug ID 117476 - agmorgan]
88 - bugfix for pam_filter.h inclusion [Bug ID 117474 - agmorgan]
90 0.72: Mon Dec 13 22:41:11 PST 1999
92 * patches from Debian (Ben Collins): pam_ftp supports event driven
93 conversations now; pwdb_chkpwd cleanup; pam_warn static compile fix;
94 user_db compiler warnings removed; debian defs file; pam_mail can
95 now be used as a session module
96 * ndbm compilation option for user_db module (fix explained by Richard Khoo)
97 * pam_cracklib bug fix
98 * packaging fixes & build from scratch stuff (Konst Bulatnikov & Frodo
100 * -ldl appended to the libpam.so compilation make rule. (Charles Seeger)
101 * Red Hat security patch for pam_pwdb forwarded by Debian! (Ben
102 Collins. Fix provided by Andrey as it caught the problem earlier in the
104 * heuristic to prevent leaking filedescriptors to an agent. [This needs
105 to be better supported perhaps by an additional libpamc API function?]
106 * pam_userdb segfault fix from (Ben Collins)
107 * PAM draft spec extras added at request of 'sen_ml'
109 0.71: Sun Nov 7 20:21:19 PST 1999
111 * added -lc to linker pass for pam_nologin module (glibc is weird).
112 * various header changes to lower the number of warnings on glibc
113 systems (Dan Yefimov)
114 * merged a bunch of Debian fixes/patches/documentation (Ben Collins)
115 things touched: libpam (minor); doc/modules/pam_unix.sgml; pam_env
116 (plus docs); pam_mkhomedir (new module for new home directories on
117 the fly...); pam_motd (new module); pam_limits (adjust to match
118 docs); pam_issue (new module + doc) [Some of these were also
119 submitted by Thorsten Kukuk]
120 * small hack to lower the number of warnings that pam_client.h was
122 * debian and SuSE apparently can use the pam_ftp module, so
123 removed the obsolete comment about this from the docs. (Thorsten
126 0.70: Fri Oct 8 22:05:30 PDT 1999
128 * bug fix for parsing of value=action tokens in libpam/pam_misc.c was
129 segfaulting (Jan Rekorajski and independently Matthew Melvin)
130 * numerous fixes from Thorsten Kukuk (icluding much needed fixes for
131 bitrot in modules and some documentation) that got included in SuSE 6.2.
132 * reentrancy issues in pam_unix and pam_cracklib resolved (Jan Rekorajski)
133 * added hosts_equiv_rootok module option to pam_rhosts module (Tim Berger)
134 * added comment about 'expose_account' module argument to admin and
135 module writers' docs (request from Michael K Johnson).
136 * myriad of bug fixes for libpamc - library now built by default and
137 works with the biomouse fingerprint scanner agent/module
138 (distributed separately).
140 0.69: Sun Aug 1 20:25:37 PDT 1999
142 * c++ header #ifdef'ing for pam_appl.h (Tuomo Pyhala)
143 * added pam_userdb module (Cristian Gafton)
144 * minor documentation changes
145 * added in revised pam_client library (libpamc). Not installed by
146 default yet, since the example agent/module combo is not very secure.
147 * glibc fixes (Thorsten Kukuk, Adam J. Richter)
149 0.68: Sun Jul 4 23:04:13 PDT 1999
151 * completely new pam_unix module from Jan Rekorajski and Stephen Langasek
152 * Jan Rekorajski pam_mail - support for Maildir format mailboxes
153 * Jan Rekorajski pam_cracklib - support for old password comparison
154 * Jan Rekorajski bug fix for pam_pwdb setcred reusing auth retval
155 * Andrey's pam_tally patch (lstat -> fstat)
156 * Robert Milkowski's additional pam_tally patches to **change format of
157 /var/log/faillog** to one from shadow-utils, add new option "per_user"
158 for pam_tally module, failure time logging, support for fail_line
159 field, and support for fail_locktime field with new option
161 * pam_tally: clean up the tally application too.
162 * Marcin Korzonek added process priority settings to pam_limits (bonus
163 points for adding to documentation!)
164 * Andrey's pam_pwdb patch (cleanup + md5 endian fubar fix)
165 * more binary prompt preparations (make misc conv more compatible with spec)
166 * modified callback hook for fail delay to be more useful with event
167 driven applications (changed function prototype - suspect no one
168 will notice). Documented this in app developer guide.
169 * documentation for pam_access from Tim Berger
170 * syntax fixes for the documentation - a long time since I've built it :*(
171 added some more names to the CREDITS file.
173 0.67: Sat Jun 19 14:01:24 PDT 1999
175 * [dropped libpam_client - libpamc will be in the next release and
176 conforms to the developing spec in doc/specs/draft-morgan-pam.raw.
177 Sorry if you are keeping a PAM tree in CVS. CVS is a pain for
178 directories, but this directory was actually not referenced by
179 anything so the disruption should be light.]
180 * updates to pam_tally from Tim
181 * multiple updates from Stephen Langasek to pam_unix
182 * pam_filter had some trouble compiling (bug report from Sridhar)
183 * pam_wheel now attempts to identify the wheel group for the local
184 system instead of blindly assuming it is gid=0. In the case that
185 there is no "wheel" group, we default to assuming gid=0 is what was
186 meant - former behavior. (courtesy of Sridhar)
187 * NIS+ changes to pam_unix module from Dmitry O Panov
188 * hopefully, a fix for redefinition of LOG_AUTHPRIV (bug report Luke
189 Kenneth Casson Leighton)
190 * fix for minor typo in pam_wheel documentation (Jacek Kopecky)
191 * slightly more explanation of the [x=y] pam.conf syntax in the sys
194 0.66: Mon Dec 28 20:22:23 PST 1998 <morgan@linux.kernel.org>
196 * Started using cvs to keep track of changes to Linux-PAM. This will
197 likely break some of the automated building stuff (RPMs etc..).
198 * security bug fix to pam_unix and pam_tally from Andrey.
199 * modules make file is now more automatic. It should be possible to
200 unpack an external module in the modules directory and have it automatically
201 added to the build process. Also added a modules/download-all script
202 that will make such downloading easier. I'm happy to receive patches to
203 this file, informing the distribution of places from which to enrich itself.
204 * removed pam_system_log stuff. Thought about it long and hard: a
205 bad idea. If libc cannot guarantee a thread safe syslog, it needs
206 to be fixed and compatibility with other PAM libraries was
207 unnecessarily strained.
208 * SAG documentation changes: Seth Chaiklin
209 * rhosts: problems with NIS lookup failures with the root-uid check.
210 As a work-around, I've partially eliminated the need for the lookup
211 by supplying two new arguments: no_uid_check, superuser=<username>.
212 As a general rule this is more pluggable, since this module might be
213 used as an authentication scheme for a network service that does not
214 need root privilege...
215 * authenticate retval -> setcred for pam_pwdb (likeauth arg).
216 * pam_pwdb event driven support
217 * non openlog pam_listfile logging
218 * BUGFIX: close filedescriptor in pam_group and pam_time (Emmanuel Galanos)
219 * Chris Adams' mailhash change for pam_mail module
220 * fixed malloc failure check in pam_handlers.c (follow up to comment
222 * update to _pam_compat.h (Brad M. Garcia)
223 * support static modules in libpam again (Brad M. Garcia)
224 * libpam/pam_misc.c for egcs to grok the code (Brad M. Garcia)
225 * added a solaris-2.5.1 defs file (revived by Derrick J Brashear)
226 * pam_listfile logs failed attempts
227 * added a comment (Michael K Johnson pointed it out) about sgml2latex
228 having a new syntax. I'll make it the change real when I upgrade...
229 * a little more text to the RFC, spelling fix from William J Buffam.
230 * minor changes to pam_securetty to accommodate event driven support.
232 0.65: Sun Apr 5 22:29:09 PDT 1998 <morgan@linux.kernel.org>
234 * added event driven programming extensions to libpam
235 - added PAM_INCOMPLETE handling to libpam/pam_dispatch.c
236 - added PAM_CONV_AGAIN which is a new conversation response that
237 should be mapped to PAM_INCOMPLETE by the module.
238 - ensured that the pam_get_user() function can resume
239 - changes to pam_strerror to accommodate above return codes
240 - clean up _pam_former_state at pam_end()
241 - ensured that former state is correctly initialized
242 - added resumption tests to pam_authenticate(), pam_chauthtok()
243 - added PAM_FAIL_DELAY item for pausing on failure
245 * improved _pam_macros.h so that macros can be used as single commands
248 * reimplemented logging to avoid bad interactions with libc. Added
249 new functions, pam_[,v]system_log() to libpam's API. A programmer
250 can check for this function's availablility by checking if
251 HAVE_PAM_SYSTEM_LOG is #defined.
253 * removed the reduce conflict from pam_conv1 creation -- I can sleep
256 * made building of static and dynamic libpam separate. This is
257 towards making it possible to build both under Solaris (for Derrick)
259 * made USE_CRACKLIB a condition in unix module (Luke Kenneth Casson Leighton)
261 * automated (quiet) config installation (Andrey)
263 0.64: Thu Feb 19 23:30:24 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
265 * miscellaneous patches for building under Solaris (Derrick J Brashear)
267 * removed STATIC support from a number of module Makefiles. Notably,
268 these modules are those that use libpwdb and caused difficulties
269 satisfying the build process. (Please submit patches to fix this...;)
271 * reomved the union for binary packet conversations from
272 (_pam_types.h). This is now completely implemented in libpam_client.
274 * Andrey's patch for working environment variable handling in
277 * made the libpam_misc conversation function a bit more flexible with
278 respect to binary conversations.
280 * added top level define (DEBUG_REL) for compiling in the form of
281 a debugging release. I use this on a Red Hat 4.2 system with little
282 chance of crashing the system as a whole. (Andrey has another
283 implementation of this -- with a spec file to match..)
285 0.63: Wed Jan 28 22:55:30 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
287 * added libpam_client "convention" library. This makes explicit the
288 use of PAM_BINARY_PROMPT. It is a first cut, so don't take it too
289 seriously yet. Comments/suggestions for improvements are very
290 welcome. Note, this library does not compile by default. It will
291 be enabled when it is judged stable. The library comes with two
292 module/agent pairs and can be used with ssh using a patch available
293 from my pre-release directory [where you got this file.]
295 * backward compatibility patch for libpam/pam_handlers.c (PAM_IGNORE
296 was working with neither "requistie" nor "required") and a DEBUG'ing
297 compile time bug with pam_dispatch.c (Savochkin Andrey Vladimirovich)
299 * minor Makefile change from (Savochkin Andrey Vladimirovich)
301 * added pam_afsauth, pam_afspass, pam_restrict, and pam_syslog hooks
304 * pam_access use of uname(2) problematic (security problem
305 highlighted by Olaf Kirch).
307 * pam_listfile went a bit crazy reading group membersips (problem
308 highlighted by Olaf Kirch and patched independently by Cristian
309 Gafton and Savochkin Andrey Vladimirovich)
311 * compatibility hooks for solaris and hpux (Derrick J Brashear)
313 * 64 bit Linux/alpha bug fixed in pam_rhosts (Andrew D. Isaacson)
315 0.62: Wed Jan 14 14:10:55 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
317 * Derrick J Brashear's patches: adds the HP stuff missed in the first
318 patch; adds SunOS support; adds support for the Solaris native ld
319 instead of requiring gnu ld.
321 * last line of .rhosts file need not contain a newline. (Bug reported by
324 0.61: Thu Jan 8 22:57:44 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
326 * complete rewrite of the "control flag" logic. Formerly, we were
327 limited to four flags: requisite, required, sufficient, optional.
328 We can now use these keywords _and_ a great deal more besides.
329 The extra logic was inspired by Vipin Samar, a preliminary patch was
330 written by Andy Berkheimer, but I "had some ideas of my own" and
331 that's what I've actually included. The basic idea is to allow the
332 admin to custom build a control flag with a series of token=value
333 pairs inside square brackets. Eg., '[default=die success=ok]' which
334 is pretty close to a synonym for 'requisite'. I'll try to document it
335 better in the sys-admin guide but I'm pretty sure it is a change for
336 the better.... If what is in the sys-admin guide is not good enough
337 for you, just take a look at the source for libpam ;^)
339 0.59: Thu Jan 8 22:27:22 PST 1998 Andrew Morgan <morgan@linux.kernel.org>
341 * better handling of empty lines in .rhosts file. (Formerly, we asked
342 the nameserver about them!) Fix from Hugh Daschbach.
344 * _broke_some_binary_compatibility_ with previous versions to become
345 compliant with X/Open's XSSO spec. Specifically, this has been
346 by changing the prototype for pam_strerror().
348 * altered the convention for the conversation mechanism to agree
349 with that of Sun. (number of responses 'now=' number of messages
350 with help from Cristian for finding a bug.. Cristian also found a
351 nasty speradic segfault bug -- Thanks!)
353 * added NIS+ support to pam_unix_*
355 * fixed a "regular file checking" problem with the ~/.rhosts sanity
356 check. Added "privategroup" option to permit group write permission
357 on the ~/.rhosts file in the case that the group owner has the same
358 name as the authenticating user. :*) "promiscuous" and "suppress"
361 * added glibc compatibility to pam_rhosts_auth (protected __USE_MISC
362 with #ifndef since my libc already defines it!).
364 * Security fix from Savochkin Andrey Vladimirovich with suggested
365 modification from Olaf Seibert.
367 * preC contains mostly code clean-ups and a number of changes to
372 * pam_getenvlist() has a more robust definition (XSSO) than was previously
373 thought. It would seem that we no longer need pam_misc_copy_env()
374 which was there to provide the robustness that pam_getenvlist()
377 Accordingly, I have REMOVED the prototype from libpam_misc. (The
378 function, however, will remain in the library as a wrapper for
379 legacy apps, but will likely be removed from libpam_misc-1.0.) PLEASE
380 FIX YOUR APPS *BEFORE* WE GET THERE!
382 * Alexy Nogin reported garbage output from pam_env in the case of
383 a non-existent environment variable.
385 * 'fixed' pwdb compilation for pam_wheel. Not very cleanly
386 done.. Mmmm. Should really clean up the entire source tree...
388 * added prototypes for mapping functions
392 various constants have had there names changed. Numerical values have
393 been retained but be aware some source old modules/applications will
394 need to be fixed before recompilation.
398 * appended documentation to README for pam_rhosts module (Nicolai
401 * verified X/Open compatibility of header files - note, where we differ
402 it is at the level of compilation warnings and the use of 'const char *'
403 instead of 'char *'. Previously, Sun(X/open) have revised their spec
404 to be more 'const'-ervative in the light of comments from Linux-PAM
407 * Ooops! PAM_AUTHTOKEN_REQD should have been PAM_NEW_AUTHTOK_REQD.
409 changed: pam_pwdb(pam_unix_acct) (also bug fix for
410 _shadow_acct_mgmt_exp() return value), pam_stress,
411 libpam/pam_dispatch, blank, xsh.
413 * New: PAM_AUTHTOK_EXPIRED - password has expired.
415 * Ooops! PAM_CRED_ESTABLISH (etc.) should have been PAM_ESTABLISH_CRED
416 etc... (changed - this may break some people's modules - PLEASE TAKE
418 changed: pam_group, pam_mail, blank, xsh; module and appl
419 docs, pam_setcred manual page.
421 * renamed internal _pam_handle structure to be pam_handle as per XSSO.
423 * added PAM_RADIO_TYPE (for multiple choice input method). Also
424 added PAM_BINARY_{MSG,PROMPT} (for interaction out of sight of user
425 - this could be used for RSA type authentication but is currently
426 just there for experimental purposes). The _BINARY_ types are now
427 usable with hooks in the libpam_misc conversation function. Still
428 have to add PAM_RADIO_TYPE.
430 * added pam_access module (Alexei Nogin)
432 * added documentation for pam_lastlog. Also modified the module to
433 not (by default) print "welcome to your new account" when it cannot
434 find a utmp entry for the user (you can turn this on with the
437 * small correction to the pam_fail_delay manual page. Either the appl or
438 the modules header file will prototype this function.
440 * added "bigcrypt" (DEC's C2) algorithm(0) to pam_pwdb. (Andy Phillips)
442 * *BSD tweaking for various #include's etc. (pam_lastlog, pam_rhosts,
443 pam_wheel, libpam/pam_handlers). (Michael Smith)
445 * added configuration directory $SCONFIGED for module specific
448 * added two new "linked" man pages (pam.conf(8) and pam.d(8))
450 * included a reasonable default for /etc/pam.conf (which can be
451 translated to /etc/pam.d/* files with the pam_conv1 binary)
453 * fixed the names of the new configuration files in
454 conf/pam_conv1/pam_conv.y
458 * pam_lastlog fixed to handle UID in virgin part of /var/log/lastlog
459 (bug report from Ronald Wahl).
461 * grammar fix in pam_cracklib
463 * segfault avoided in pam_pwdb (getting user). Updating of passwords
464 that are directed to a "new" database are more robust now (bug noted
465 by Michael K. Johnson). Added "unix" module argument for migrating
466 passwords from another database to /etc/passwd. (documentation
467 updated). Removed "bad username []" warning for empty passwords -
468 on again if you supply the 'debug' module argument.
470 * ctrl-D respected in conversation function (libpam_misc)
472 * Removed -DPAM_FAIL_DELAY_ON from top-level Makefile. Nothing in
473 the distribution uses it. I guess this change happened a while
474 back, basically I'm trying to make the module parts of the
475 distribution "source compatible" with the RFC definition of PAM.
476 This implementation of PAM is a superset of that definition. I have
477 added the following symbols to the Linux-PAM header files:
479 PAM_DATA_SILENT (see _pam_types.h)
480 HAVE_PAM_FAIL_DELAY (see _pam_types.h)
481 PAM_DATA_REPLACE (see _pam_modules.h)
483 Any module (or application) that wants to utilize these features,
484 should check (#ifdef) for these tokens before using the associated
485 functionality. (Credit to Michael K. Johnson for pointing out my
486 earlier omission: not documenting this change :*)
488 * first stab at making modules more independent of full library
489 source. Modules converted:
495 * pam_env.c: #include <errno.h> added to ease GNU libc use. (Michael
498 * pam_unix_passwd fixes to shadow aging code (Eliot Frank)
500 * added README for pam_tally
502 0.57: Fri Apr 4 23:00:45 PST 1997 Andrew Morgan <morgan@parc.power.net>
504 * added "nodelay" argument to pam_pwdb. This can be used to turn off
505 the call to pam_fail_delay that takes effect when the user fails to
506 authenticate themself.
508 * added "suppress" argument to pam_rhosts_auth module. This will stop
509 printing the "rlogin failure message" when the user does not have a
512 * Extra fixes for FAKEROOT in Makefiles (Savochkin Andrey
515 * pam_tally added to tree courtesy of Tim Baverstock
517 * pam_rhosts_auth was failing to read NFS mounted .rhosts
518 files. (Fixed by Peter Allgeyer). Refixed and further enhanced
519 (netgroups) by Nicolai Langfeldt. [Credit also to G.Wilford for some
520 changes that were not actually included..]
522 * optional (#ifdef PAM_READ_BOTH_CONFS) support for parsing of pam.d/
523 AND pam.conf files (Elliot Lee).
525 * Added (and signed) Cristian's PGP key. (I've never met him, but I am
526 convinced the key belongs to the guy that is making the PAM rpms and
527 also producing libpwdb. Please note, I will not be signing anyone
528 else's key without a personal introduction..)
530 * fixed erroneous syslog warning in pam_listfile (Savochkin Andrey
531 Vladimirovich, whole file reformatted by Cristian)
533 * modified pam_securetty to return PAM_IGNORE in the case that the user's
534 name is not known to the system (was previously, PAM_USER_UNKNOWN). The
535 Rationale is that pam_securetty's sole purpose is to prevent superuser
536 login anywhere other than at the console. It is not its concern that the
537 user is unknown - only that they are _not_ root. Returning
538 PAM_IGNORE, however, insures that the pam_securetty can never be used to
539 "authenticate" a non-existent user. (Cristian Gafton with bug report from
542 * Modified pam_nologin to display the no-login message when the user
543 is not known. The return value in this case is still PAM_USER_UNKNOWN.
544 (Bug report from Cristian Gafton)
546 * Added NEED_LCKPWD for pam_unix/ This is used to define the locking
547 functions and should only be turned on if you don't have them in
550 * tidied up pam_lastlog and pam_pwdb: removed function that was never used.
552 * Note for package maintainers: I have added $(FAKEROOT) to the list of
553 environment variables. This should help greatly when you build PAM
554 in a subdirectory. I've gone through the tree and tried to make
555 everything compatible with it.
557 * added pam_env (courtesy of Dave Kinchlea)
559 * removed pam_passwd+ from the tree. It has not been maintained in a
560 long time and running a shell script was basically insecure. I've
561 indicated where you can pick up the source if you want it.
563 * #define HAVE_PAM_FAIL_DELAY . Applications can conditionally compile
564 with this if they want to see if the facility is available. It is
565 now always available. (corresponding compilation cleanups..)
567 * _pam_sanitize() added to pam_misc. It purges the PAM_AUTHTOK and
568 PAM_OLDAUTHTOK items. (calls replaced in pam_auth and pam_password)
570 * pam_rhosts now knows about the '+' entry. Since I think this is a
571 dangerous thing, I have required that the sysadmin supply the
572 "promiscuous" flag for it in the corresponding configuration file
575 * FULL_LINUX_PAM_SOURCE_TREE exported from the top level make file.
576 If you want to build a module, you can test for this to determine if
577 it should take its directions from above or supply default locations
578 for installation. Etc.
580 0.56: Sat Feb 15 12:21:01 PST 1997 <morgan@parc.power.net>
582 * pam_handlers.c can now interpret the pam.d/ service config tree:
583 - if /etc/pam.d/ exists /etc/pam.conf is IGNORED
584 (otherwise /etc/pam.conf is treated as before)
586 . config files are named (in lower case) by service-name
587 . config files have same syntax as /etc/pam.conf except
588 that the "service-name" field is not present. (there
589 are thus three manditory fields (and arguments are
592 module-type control-flag module-path optional-args...
596 * included conf/pam_conv1 for converting pam.conf to a pam.d/ version
597 1.0 directory tree. This program reads a pam.conf file on the
598 standard input stream and creates ./pam.d/ (in the local directory)
599 and fills it with ./pam.d/"service-name" files.
601 *> Note: It will fail if ./pam.d/ already exists.
603 PLEASE REPORT ANY BUGS WITH THIS CONVERSION PROGRAM... It currently
604 cannot retain comments from the old conf file, so take care to do this
605 by hand. Also, please email me with the fix that makes the
606 shift/reduce conflict go away...
608 * Added default module path to libpam for modules (see pam_handlers.c)
609 it makes use of Makfile defined symbol: DEFAULT_MODULE_PATH which is
610 inhereted from the defs/* variable $(SECUREDIR). Removed module
611 paths from the sample pam.conf file as they are no longer needed.
613 * pam_pwdb can now verify read protected passwords when it is not run
614 by root. This is via a helper binary that is setuid root.
616 * pam_permit now prompts for a username if it is not already determined
618 * pam_rhosts now honors "debug" and no longer hardwire's "root" as the
621 * pam_securetty now honors the "debug" flag
623 * trouble parsing extra spaces fixed in pam_time and pam_group
625 * added Michael K. Johnson's PGP key to the pgp.keys.asc list
627 * pam_end->env not being free()'d: fixed
629 * manuals relocated to section 3
631 * fixed bug in pam_mail.c, and enhanced to recognize '~' as a prefix
632 to indicate the $HOME of the user (courtesy David
633 Kinchlea). *Changed* from a "session" module to an "auth"
634 module. It cannot be used to authenticate a user, but it can be used
635 in setting credentials.
637 * fixed a stupid bug in pam_warn.. Only PAM_SERVICE was being read :*(
639 * pam_radius rewritten to exclusively make use of libpwdb. (minor fix
640 to Makefile for cleaning up - AGM)
642 * pam_limits extended to limit the total number of logins on a system
645 * libpam and libpam_misc use $(MAJOR_REL) and $(MINOR_REL) to set their
646 version numbers [defined in top level makefile]
648 * bugfix in sed command in defs/redhat.defs (AGM's fault)
650 * The following was related to a possibility of buffer overruns in
651 the syslogging code: removed fixed length array from syslogging
652 function in the following modules [capitalized the log identifier
653 so the sysadmin can "know" these are fixed on the local system],
655 pam_ftp, pam_stress, pam_rootok, pam_securetty,
656 pam_listfile, pam_shells, pam_warn, pam_lastlog
658 pam_unix_passwd (where it was definitely _not_ exploitable)
660 0.55: Sat Jan 4 14:43:02 PST 1997, Andrew Morgan <morgan@parc.power.net>
662 * added "requisite" control_flag to /etc/pam.conf syntax. [See
663 Sys. Admin. Guide for explanation] changes to pam_handlers.c
665 * completely new handling of garbled pam.conf lines. The modus
666 operandi now is to assume that any errors in the line are minor.
667 Errors of this sort should *most definitely* lead to the module
668 failing, however, just ignoring the line (as was the case
669 previously) can lead to gaping security holes(! Not foreseen by the
670 RFC). The "motivation" for the RFC's comments about ignoring garbled
671 lines is present in spirit in the new code: basically a garbled line
672 is treated like an instance of the pam_deny.so module.
673 changes to pam_handlers.c and pam_dispatch.c .
675 * patched libpam, to (a) call _pam_init_handlers from pam_start() and
676 (b) to log a text error if there are no modules defined for a given
677 service when a call to a module is requested. [pam_start() and
678 pam_dispatch() were changed].
680 * patched pam_securetty to deal with "/dev/" prefix on PAM_TTY item.
682 * reorganized the modules/Makefile to include *ALL* modules. It is now
683 the responsibility of the modules themselves to test whether they can
684 be compiled locally or not.
686 * modified pam_group to add to the getgroups() list rather than overwrite
687 it. [In the case of "HAVE_LIBPWDB" we use the pwdb_..() calls to
688 translate the group names.]. Module now pays attention to
691 * identified and removed bugs in field reading code of pam_time and
694 * Cristian's patches to pam_listfile module, corresponding change to
697 * I've discovered &ero; for sgml!
698 Added pam_time documentation to the admin guide.
700 * added manual pages: pam.8, pam_start.2(=pam_end.2),
701 pam_authenticate.2, pam_setcred.2, pam_strerror.2,
702 pam_open_session.2(=pam_close_session.2) and pam_chauthtok.2 .
706 - pam_mail (tells the user if they have any new mail
707 and sets their MAIL env variable)
708 - pam_lastlog (reports on the last time this user called
711 * new module hooks provided.
713 * added a timeout feature to the conversation function in
714 libpam_misc. Documented it in the application developers' guide.
716 * fixed bug in pam_misc_paste_env() function..
718 * slight modifications to wheel and rhosts writeup.
720 * more security issues added to module and application guides.
723 Things present but not mentioned in previous release (sorry)
725 * pam_pwdb module now resets the "last_change" entry before updating a
729 Sat Nov 30 19:30:20 PST 1996, Andrew Morgan <morgan@parc.power.net>
731 * added environment handling to libpam. involved change to _pam_types.h
732 also added supplementary functions to libpam_misc
734 * added pam_radius - Cristian
736 * slight speed up for pam_rhosts
738 * significantly enhanced sys-admin documentation (8 p -> 41 p in
739 PostScript). Added to other documentation too. Mostly the changes
740 in the other docs concern the new PAM-environment support, there is
741 also some coverage of libpam_misc in the App. Developers' guide.
743 * Cristian's patches to pam_limits and pam_pwdb. Fixing bugs. (MORE added)
745 * adopted Cristian's _pam_macros.h file to help with common macros and
746 debugging stuff, gone through tree tidying up debugging lines to use
749 - for consistency replaced DROP() with _pam_drop()
751 * commented memory debugging in top level makefile
753 * added the following modules
755 - pam_warn log information to syslog(3) about service application
756 - pam_ftp if user is 'ftp' then set PAM_RUSER/PAM_RHOST with password
757 (comment about nologin added to last release's notes)
759 * modified the pam_listfile module. It now declares a meaningful static
762 Sun Nov 10 13:26:39 PST 1996, Andrew Morgan <morgan@parc.power.net>
764 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
766 -------> http://parc.power.net/morgan/Linux-PAM/index.html <-------
768 **PLEASE *RE*AMEND YOUR PERSONAL LINKS**
770 A brief summary of what has changed:
772 * many modules have been modified to accomodate fixing the pam_get_user()
773 change. Please take note if you have a module in this distribution.
775 * pam_unix is now the pam_unix that Red Hat has been using and which
776 should be fairly well debugged.
778 - I've added some #ifdef's to make it compile for me, and also
779 updated it with respect to the libpam-0.53, so have a look at the
780 .../modules/pam_unix/Makefile to enable cracklib and shadow features
782 ** BECAUSE OF THIS, I cannot guarantee this code works as it **
783 ** did for Red Hat. Please test and report any problems. **
785 * the pam_unix of .52 (renamed to pam_pwdb) has been enhanced and made
786 more flexible with by implementing it with respect to the new
787 "Password Database Library" see
789 http://parc.power.net/morgan/libpwdb/index.html
791 modules included in this release that require this library to
792 function are the following:
794 - pam_pwdb (ne pam_unix-0.52 + some enhancements)
799 * Added some optional code for memory debugging. In order to support
800 this you have to enable MEMORY_DEBUG in the top level makefile and
801 also #define MEMORY_DEBUG in your applications when they are compiled.
802 The extra code resides in libpam (compiled if MEMORY_DEBUG is defined)
803 and the macros for malloc etc. are to be found at the end of
806 * used above code to locate two memory leaks in pam_unix module and two
807 in libpam (pam_handlers.h)
809 * pam_get_user() now sets the PAM_USER item. After reading the Sun
810 manual page again, it was clear that it should do this. Various
811 modules have been assuming this and now I have modified most of them
812 to account for this change. Additionally, pam_get_user() is now
813 located in the module include file; modules are supposed to be the
814 ones that use it(!) [Note, this is explicitly contrary to the Sun
815 manual page, but in the spirit of the Linux distribution to date.]
817 * replaced -D"LINUX" with -D"LINUX_PAM" as this is more explicit and less
818 likely to be confused with -D"linux".
819 Also, modified the libpam #include files to behave more like the Sun
820 ones #ifndef LINUX_PAM.
822 * removed <bf/ .. / from documentation titles. This was not giving
823 politically correct html..
825 ----- My vvvvvvvvvvvvvvvvvvv was a long time ago ;*] -----
827 Wed Sep 4 23:57:19 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>
829 0. Before I begin, Linux-PAM has a new primary distribution site (kindly
830 donated by Power Net Inc., Los Angeles)
832 **PLEASE AMMEND YOUR PERSONAL LINKS**
834 -------> http://www.power.net/morgan/Linux-PAM <-------
836 **PLEASE AMMEND YOUR PERSONAL LINKS**
838 1. I'm hoping to make the next release a bug-fix release... So please find
841 2. here are the changes for .52:
843 * minor changes to module documentation [Incidently, it is now
844 available on-line from the WWW page above]. More changes to follow in
845 the next two releases. PLEASE EMAIL me or the list if there is
846 anything that isn't clear!
848 * completely changed the unix module. Now a single module for all four
849 management groups (this meant that I could define all functions as
850 static that were not part of the pam_sm_... scheme. AGM)
852 - Shadow support added
853 PASSWD - Elliot's account management included, and enhanced by Cristian Gafton.
854 - MD5 password support added by Cristian Gafton.
855 - maxtries for authentication now enforced.
856 - Password changing function in pam_unix now works!
857 Although obviously, I'm not going to *guarantee* it ;^) .
858 - stole Marek's locking code from the Red Hat unix module.
859 [ If you like you can #ifdef it in or out ... ]
861 You can configure the module more from its Makefile in
862 0.52/modules/pam_unix/
864 If you are nervous that it will destroy your /etc/passwd or shadow
865 files then EDIT the 0.52/modules/pam_unix/pam_unix_pass.-c file.
866 Here is the warning comment from this file...
868 -------------8<-----------------
871 * Uncomment the following #define if you are paranoid, and do not
872 * want to risk losing your /etc/passwd or shadow files.
873 * It works for me (AGM) but there are no guarantees.
877 /* #define TMP__FILE */
878 ------------->8-----------------
880 *** If anyone has any trouble, please *say*. Your problem will be
881 fixed in the next release. Also please feel free to scour the
882 code for race conditions etc...
884 [* The above change requires that you purge your /usr/lib/security
885 directory of the old pam_unix_XXX.so modules: they will NOT be deleted
886 with a 'make remove'.]
888 * the prototype for the cleanup function supplied to pam_set_data used
889 to return "int". According to Sun it should be "void". CHANGED.
891 * added some definitions for the 'error_status' mask values that are
892 passed to the cleanup function associated with each
893 module-data-item. These numbers were needed to keep up with changing
894 a data item (see for example the code in pam_unix/support.-c that
895 manages the maximum number of retries so far). Will see what Sun says
896 (current indications are positive); this may be undone before 1.0 is
897 released. Here are the definitions (from pam_modules.h).
899 #define PAM_DATA_SILENT 0x40000000 /* used to suppress messages... */
900 #define PAM_DATA_REPLACE 0x20000000 /* used when replacing a data item */
902 * Changed the .../conf/pam.conf file. It now points to the new
903 pam_unix module for 'su' and 'passwd' [can get these as SimpleApps --
904 I use them for testing. A more extensive selection of applications is
905 available from Red Hat...]
907 * corrected a bug in pam_dispatch. Basically, the problem was that if
908 all the modules were "sufficient" then the return value for this
909 function was never set. The net effect was that _pam_dispatch_aux
910 returned success when all the sufficient modules failed. :^( I think
911 this is the correct fix to a problem that the Red Hat folks had
914 sopwith* Removed advisory locking from libpam (thanks for the POSIX patch
915 goes to Josh Wilmes's, my apologies for not using it in the
916 end.). Advisory locking did not seem sufficiently secure for libpam.
917 Thanks to Werner Almesberger for identifying the corresponding "denial
918 of service attack". :*(
920 * related to fix, have introduced a lock file /var/lock/subsys/PAM
921 that can be used to indicate the system should pay attention to
922 advisory locking on /etc/pam.conf file. To implement this you need to
923 define PAM_LOCKING though. (see .52/libpam)
925 * modified pam_fail_delay() function. Couldn't find the "not working"
926 problem indicated by Michael, but modified it to do pseudo-random
927 delays based on the values indicated by pam_fail_delay() -- the
928 function "that may eventually go away"... Although Sun is warming to
931 * new modules include:
933 pam_shells - authentication for users with a shell listed in
934 /etc/shells. Erik Troan <ewt@redhat.com>
936 pam_listfile - authentication based on the contents of files.
937 Set to be more general than the above in the
938 future. UNTESTED. Elliot Lee <@redhat.com>
939 [Note, this module compiles with a non-trivial
942 Thu Aug 8 22:32:15 PDT 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
944 * modified makefiles to take more of their installation instructions
945 from the top level makefile. Desired for integration into the Debian
946 distribution, and generally a good idea.
948 * fixed memory arithmetic in pam_handlers
949 -- still need to track down why failure to load modules can lead to
950 authentication succeding..
952 * added tags for new modules (smartcards from Alex -- just a promise
953 at this stage) and a new module from Elliot Lee; pam_securetty
955 * I have not had time to smooth out the wrinkles with it, but Alex's
956 pam_unix modifications are provided in pam_unix-alex (in the modules
957 directory) they will not be compiled by 'make all' and I can't even
958 say if they do compile... I will try to look at them for .52 but, in
959 the mean time please feel free to study/fix/discuss what is there.
961 * pam_rhosts module. Removed code for manually setting the ruser
962 etc. This was not very secure.
964 * [remade .ps docs to be in letter format -- my printer complains
967 Sunday July, 7 12:45:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
969 * No longer accompanying the Linux-PAM release with apps installed.
970 [Will provide what was here in a separate package.. (soon)
971 lib Also see http://www.redhat.com/pam for some more (in .rpm form...)]
973 * renamed libmisc to libpam_misc. It is currently configured to only compile
974 the static library. For some strange reason (perhaps someone can
975 investigate) my Linux 2.0.0 kernel with RedHat 3.0.3 system
976 segfaults when I compile it to be a dynamic library. The segfault
977 seems to be inside the call to the ** dl_XXX ** function...!?
979 There is a simple flag in the libpam_misc/Makefile to turn on dynamic
982 * Added a little unofficial code for delay support in libpam (will probably
983 disappear later..) There is some documentation for it in the pam_modules
984 doc now. That will obviously go too.
986 * rewritten pam_time to use *logic* to specify the stringing together of
987 users/times/terminals etc.. (what was there before was superficially
988 logical but basically un-predictable!)
990 * added pam_group. Its syntax is almost identical to pam_time but it
991 has another field added; a list of groups to make the user a member
992 of if they pass the previous tests. It seems to not co-exist too well
993 with the groups in the /etc/group but I hope to have that fixed by
996 * minor re-formatting of pam_modules documentation
998 * removed ...// since it wasn't being used and didn't look like it
1001 GCCSunday 23 22:35:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1003 * The major change is the addition of a new module: pam_time for
1004 restricting access on terminals at given times for indicated users
1005 it comes with its own configuration file /etc/security/time.conf
1006 and the sample file simply restricts 'you' from satisfying the blank
1007 application if they try to use blank from any tty*
1009 * Small changes include
1010 - altered pam.conf to demonstrate above new module (try typing username: you)
1011 - very minor changes to the docs (pam_appl and pam_modules)
1013 Saturday June 2 01:40:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1015 *** PLEASE READ THE README, it has changed ***
1017 * NOTE, 'su' exhibits a "system error", when static linking is
1018 used. This is because the pam_unix_... module currently only has
1019 partial static linking support. This is likely to change on Monday
1020 June 3, when Alex makes his latest version availible. I will include
1021 the updated module in next release.
1025 * modified the way in which libpam/pam_modules.h defines prototypes for
1026 the pam_sm_ functions. Now the module must declare which functions it
1027 is to provide *before* the #include <security/pam_modules.h> line.
1028 (for contrasting examples, see the pam_deny and pam_rootok modules)
1029 This removed the ugly hack of defining functions that are never called
1030 to overcome warnings... This seems much tidier.
1031 insterted* updated the TODO list. (changed mailing list address)
1032 * updated README in .../modules to reflect modifications to static
1033 compliation protocol
1034 * modified the pam_modules documentation to describe this.
1035 * corrected last argument of pam_get_item( ... ) in
1036 pam_appl/modules.sgml, to "const void **".
1037 * altered GNU GPL's in the documentation, and various other parts of
1038 the distribution. *Please check* that any code you are responsible for
1040 * Added ./Copyright (please check that it is acceptable)
1041 * updated ./README to make current and indicate the new mailing list
1043 * have completely rewritten pam_filter. It now runs modular filter
1044 executables (stored in /usr/sbin/pam_filter/) This should make it
1045 trivial for others to write their own filters.. If you want yours
1046 included in the distribution please email the list/me.
1047 * changes to libpam; there was a silly bug with multiple arguments on a
1048 pam.conf line that was broken with a '\<LF>'.
1049 * 'su' rearranged code (to make better use of PAM)
1050 *Also* now uses POSIX signals--this should help the Alpha port.
1051 * 'passwd' now uses getlogin() to determine who's passwords to change.
1053 Sunday May 26 9:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1055 * fixed module makefiles to create needed dynamic/static subdirectories
1057 Saturday May 25 20:30:27.8 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1059 * LOTS has changed regarding how the modules/libpam are built.
1060 * Michael's mostly complete changes for static support--see below
1061 (Andrew got a little carried away and automated the static linking
1062 of modules---bugs are likely mine ;( )
1063 * Thanks mostly to Michael, libpam now compiles without a single warning :^]
1064 * made static modules/library optional.
1065 CFLAGS* added 'make sterile' to top level makefile. This does extraclean and remove
1066 * added Michael and Joseph to documentation credits (and a subsection for
1067 future documentation of static module support in pam_modules.sgml)
1068 * libpam; many changes to makefiles and also automated the inclusion of
1069 static module objects in pam_static.c
1070 * modified modules for automated static/dynamic support. Added static &
1071 dynamic subdirectories, as instructed by Michael
1072 * removed an annoying syslog message from pam_filter: "parent exited.."
1073 * updated todo list (anyone know anything about svgalib/X? we probably should
1074 have some support for these...)
1076 Friday May 24 16:30:15 EDT 1996 (Michael K. Johnson <johnsonm@redhat.com>)
1078 * Added first (incomplete) cut at static support.
1080 . changes in libpam, including a new file, pam_static.c
1081 . changes to modules including exporting struct of function pointers
1082 . static and dynamic linking can be combined
1083 . right now, the only working combinations are just dynamic
1084 linking and dynamic libpam.so with static modules linked
1085 into libpam.so. That's on the list of things to fix...
1086 . modules are built differently depending on whether they
1087 are static or dynamic. Therefore, there are two directories
1088 under each module directory, one for static, and one for
1090 * Fixed random brokenness in the Makefiles. [ foo -nt bar ] is
1091 rather redundant in a makefile, for instance. Also, passing
1092 on the command line is broken because it cannot be
1093 overridden in any way (even adding important parts) in lower-level
1095 * Unfortunately, fixing some of the brokenness meant that I used
1096 GNU-specific stuff. However, I *think* that there was GNU-specific
1097 stuff already. And I think that we should just use the GNU
1098 extensions, because any platform that GNU make doesn't port to
1099 easily will be hard to port to anyway. It also won't be likely
1100 passwd to handle autoconf, which was Ted's suggestion for getting
1101 around limitations in standard make...
1102 For now, I suggest that we just use some simple GNU-specific
1105 Monday May 20 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1107 * added some text to pam_modules.sgml
1108 * corrected Marek's name in all documentation
1109 * made pam_stress conform to chauthtok conventions -- ie can now request
1110 old password before proceeding.
1111 * included Alex's latest unix module
1112 * included Al's + password strength checking module
1113 * included pam_rootok module
1114 * fixed too many bugs in libpam.. all subtly related to the argument lists
1115 or use of syslog. Added more debugging lines here too.
1116 * fixed the pam.conf file
1117 * deleted pam_test module. It is pretty old and basically superceeded
1120 Friday May 9 1:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1122 * updated documentaion, added Al Longyear to credits and corrected the
1123 spelling of Jeff's name(!). Most changes to pam.sgml (even added a figure!)
1124 * new module pam_rhosts_auth (from Al Longyear)
1125 * new apps rlogind and ftpd (a patch) from Al.
1126 * modified 'passwd' to not call pam_authenticate (note, none of the
1127 modules respect this convention yet!)
1128 * fixed bug in libpam that caused trouble if the last line of a
1129 pam.conf file ends with a module name and no newline character
1130 * also made more compatable with documentation, in that bad lines in
1131 pam.conf are now ignored rather than causing libpam to return an
1133 * libpam now overwrites the AUTHTOKs when returning from
1134 pam_authenticate and pam_chauthtok calls (as per Sun/RFC too)
1135 * libpam is now installed as libpam.so.XXX in a way that ldconfig can
1139 Wednesday May 1 22:00:00 PST 1996 (Andrew Morgan <morgan@physics.ucla.edu>)
1141 * removed .../test directory, use .../examples from now on.
1142 * added .../apps directory for fully functional applications
1143 - the apps directory contains directories that actually contain the apps.
1144 the idea is to make application compilation conditional on the presence
1145 of the directory. Note, there are entries in the Makefile for
1146 'login' and 'ftpd' that are ready for installation... Email me if
1147 you want to reserve a directory name for an application you are
1149 * similar changes to .../modules makefile [entries for pam_skey and
1150 pam_kerberos created---awaiting the directories.] Email me if you
1151 want to register another module...
1152 * minor changes to docs.. Not really worth reprinting them quite yet!
1154 * added misc_conv to libmisc. it is a generic conversation function
1155 for text based applications. [would be nice to see someone create
1156 an Xlib and/or svgalib version]
1157 * fixed ctrl-z/c bug with pam_filter module [try xsh with the default
1159 * added 'required' argument to 'pam_stress' module.
1160 * added a TODO list... other suggestions to the list please.
1162 Saturday April 7 00:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1164 * Alex and Marek please note I have altered _pam_auth_unix a little, to
1165 make it get the passwords with the "proper method" (and also fixed it
1166 to not have as many compiler warnings)
1167 * updated the conf/pam.conf file
1168 * added new example application examples/xsh.c (like blank but invokes
1170 * Marc's patches for examples/blank.c (and AGM's too)
1171 * fixed stacking of modules in libpam/pam_handlers.c
1172 * fixed RESETing in libpam/pam_item.c
1173 * added new module modules/pam_filter/ to demonstrate the possibility
1174 of inserting an arbitrary filter between the terminal and the
1175 application that could do customized logging etc... (see use of
1176 bin/xsh as defined in conf/pam.conf)
1179 Saturday March 16 19:00:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1181 These notes are for 0.3 I don't think I've left anything important
1182 out, but I will use emacs 'C-x v a' next time! (Thanks Jeff)
1184 * not much has changed with the functionality of the Linux-PAM lib
1186 - pam_password calls module twice with different arguments
1187 - added const to some of the function arguments
1188 - added PAM_MAX_MES_ to <security/_pam_types.h>
1189 - was a lot over zealous about purging old passwords...
1190 I have removed much of this from source to make it
1191 more compatible with SUN.
1192 - moved some PAM_... tokens to pam_modules.h from _pam_types.h
1193 (no-one should notice)
1195 * added three modules: pam_permit pam_deny pam_stress
1196 no prizes for guessing what the first two do. The third is
1197 a reasonably complete (functional) module. Is intended for testing
1200 * fixed a few pieces of examples/blank.c so that it works (with
1203 * ammended the documentation. Looking better, but suggestions/comments
1206 Sunday March 10 10:50:00 PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1208 These notes are for Linux-PAM release 0.21. They cover what's changed
1209 since I relased 0.2.
1212 * substantially changed ./README
1213 * fixed bug reading \\\n in pam.conf file
1214 * small changes to documentation
1215 * added `blank' application to ./examples (could be viewed as
1216 a `Linux-PAM aware' application template.)
1217 * oops. now including pam_passwd.o and pam_session.o in pamlib.so
1218 * compute md5 checksums for all the source when making a release
1219 - added `make check' and `make RCScheck' to compute md5 checksums
1220 * create a second tar file with all the RCS files in.
1221 * removed the .html and .txt docs, supplying sgml sources instead.
1222 - see README for info on where to get .ps files
1224 Thursday March 6 0:44:?? PST 1996 ( Andrew Morgan <morgan@physics.ucla.edu> )
1226 These notes are for Linux-PAM release 0.2. They cover what's changed
1227 since Marc Ewing relased 0.1.
1229 **** Please note. All of the directories in this release have been modified
1230 **** slightly to conform to the new pamlib. A couple of new directories have
1231 **** been added. As well as some documentation. If some of your code
1232 **** was in the previous release. Feel free to update it, but please
1233 **** try to conform to the new headers and Makefiles.
1235 * Andrew Morgan (morgan@physics.ucla.edu) is making this release
1236 availible, Marc has been busy...!
1238 * Marc's pam-0.1/lib has been (quietly) enhanced and integrated into
1239 Alex Yurie's collected tree of library and module code
1240 (linux-pam.prop.1.tar.gz). Most of the changes are to do with error
1241 checking. Some more robustness in the reading of the pam.conf file
1242 and the addition of the pam_get_user() function.
1244 * The pam_*.h files have been reorganized to logically enforce the
1245 separation of modules from applications. [Don't panic! Apart from
1246 changing references of the form
1248 #include "pam_appl.h"
1252 #include <security/pam_appl.h>
1254 The reorganization should be backwardly compatable (ie. a module
1255 written for SUN will be as compatable as it was before with the
1256 previous version ;)~ ]
1258 (All of the source in this tree now conforms to this scheme...)
1260 The new reorganization means that modules can be compiled with a
1261 single header, <security/pam_modules.h>, and applications with
1262 <security/pam_appl.h>.
1264 * I have tried to remove all the compiler warnings from the updated
1265 "pamlib/*.c" files. On my system, (with a slightly modified <dlfcn.h>
1266 email me if it interests you..) there are only two warnings that
1267 remain: they are that ansi does not permit void --> fn ptr
1268 assignment. K&Rv2 doesn't mention this....? As a matter of principle,
1269 if anyone knows how to get rid of that warning... please
1270 tell. Thanks! "-pedantic"
1272 * you can "make all" as a plain user, but
1274 * to "make install" you must be root. The include files are placed in
1275 /usr/include/security. The libpam.so library is installed in /usr/lib
1276 and the modules in /usr/lib/security. The two test binaries
1277 are installed in the Linux-PAM-0.2/bin directory and a chance is given to
1278 replace your /etc/pam.conf file with the one in Linux-PAM-0.2/conf.
1280 * I have included some documentation (pretty preliminary at the
1281 moment) which I have been working on in .../doc .
1283 I have had a little trouble with the modules, but atleast there are no
1284 segfaults! Please try it out and discuss your results... I actually
1285 hope it all works for you. But, Email any bugs/suggestions to the
1286 Linux-PAM list: linux-pam@mit.edu .....
1291 (morgan@physics.ucla.edu)
1294 Sat Feb 17 17:30:24 EST 1996 (Alexander O. Yuriev alex@bach.cis.temple.edu)
1296 * conf directory created with example of pam_conf
1297 * stable code from pam_unix is added to modules/pam_unix
1298 * test/test.c now requests username and password and attempts
1299 to perform authentication